7b71876980
boilerplate. SGI-PV: 913862 SGI-Modid: xfs-linux:xfs-kern:23903a Signed-off-by: Nathan Scott <nathans@sgi.com>
117 lines
3.1 KiB
C
117 lines
3.1 KiB
C
/*
|
|
* Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
|
|
* All Rights Reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it would be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write the Free Software Foundation,
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
#include "xfs.h"
|
|
#include <linux/proc_fs.h>
|
|
|
|
DEFINE_PER_CPU(struct xfsstats, xfsstats);
|
|
|
|
STATIC int
|
|
xfs_read_xfsstats(
|
|
char *buffer,
|
|
char **start,
|
|
off_t offset,
|
|
int count,
|
|
int *eof,
|
|
void *data)
|
|
{
|
|
int c, i, j, len, val;
|
|
__uint64_t xs_xstrat_bytes = 0;
|
|
__uint64_t xs_write_bytes = 0;
|
|
__uint64_t xs_read_bytes = 0;
|
|
|
|
static struct xstats_entry {
|
|
char *desc;
|
|
int endpoint;
|
|
} xstats[] = {
|
|
{ "extent_alloc", XFSSTAT_END_EXTENT_ALLOC },
|
|
{ "abt", XFSSTAT_END_ALLOC_BTREE },
|
|
{ "blk_map", XFSSTAT_END_BLOCK_MAPPING },
|
|
{ "bmbt", XFSSTAT_END_BLOCK_MAP_BTREE },
|
|
{ "dir", XFSSTAT_END_DIRECTORY_OPS },
|
|
{ "trans", XFSSTAT_END_TRANSACTIONS },
|
|
{ "ig", XFSSTAT_END_INODE_OPS },
|
|
{ "log", XFSSTAT_END_LOG_OPS },
|
|
{ "push_ail", XFSSTAT_END_TAIL_PUSHING },
|
|
{ "xstrat", XFSSTAT_END_WRITE_CONVERT },
|
|
{ "rw", XFSSTAT_END_READ_WRITE_OPS },
|
|
{ "attr", XFSSTAT_END_ATTRIBUTE_OPS },
|
|
{ "icluster", XFSSTAT_END_INODE_CLUSTER },
|
|
{ "vnodes", XFSSTAT_END_VNODE_OPS },
|
|
{ "buf", XFSSTAT_END_BUF },
|
|
};
|
|
|
|
/* Loop over all stats groups */
|
|
for (i=j=len = 0; i < sizeof(xstats)/sizeof(struct xstats_entry); i++) {
|
|
len += sprintf(buffer + len, xstats[i].desc);
|
|
/* inner loop does each group */
|
|
while (j < xstats[i].endpoint) {
|
|
val = 0;
|
|
/* sum over all cpus */
|
|
for (c = 0; c < NR_CPUS; c++) {
|
|
if (!cpu_possible(c)) continue;
|
|
val += *(((__u32*)&per_cpu(xfsstats, c) + j));
|
|
}
|
|
len += sprintf(buffer + len, " %u", val);
|
|
j++;
|
|
}
|
|
buffer[len++] = '\n';
|
|
}
|
|
/* extra precision counters */
|
|
for (i = 0; i < NR_CPUS; i++) {
|
|
if (!cpu_possible(i)) continue;
|
|
xs_xstrat_bytes += per_cpu(xfsstats, i).xs_xstrat_bytes;
|
|
xs_write_bytes += per_cpu(xfsstats, i).xs_write_bytes;
|
|
xs_read_bytes += per_cpu(xfsstats, i).xs_read_bytes;
|
|
}
|
|
|
|
len += sprintf(buffer + len, "xpc %Lu %Lu %Lu\n",
|
|
xs_xstrat_bytes, xs_write_bytes, xs_read_bytes);
|
|
len += sprintf(buffer + len, "debug %u\n",
|
|
#if defined(DEBUG)
|
|
1);
|
|
#else
|
|
0);
|
|
#endif
|
|
|
|
if (offset >= len) {
|
|
*start = buffer;
|
|
*eof = 1;
|
|
return 0;
|
|
}
|
|
*start = buffer + offset;
|
|
if ((len -= offset) > count)
|
|
return count;
|
|
*eof = 1;
|
|
|
|
return len;
|
|
}
|
|
|
|
void
|
|
xfs_init_procfs(void)
|
|
{
|
|
if (!proc_mkdir("fs/xfs", NULL))
|
|
return;
|
|
create_proc_read_entry("fs/xfs/stat", 0, NULL, xfs_read_xfsstats, NULL);
|
|
}
|
|
|
|
void
|
|
xfs_cleanup_procfs(void)
|
|
{
|
|
remove_proc_entry("fs/xfs/stat", NULL);
|
|
remove_proc_entry("fs/xfs", NULL);
|
|
}
|